65995842 has 32 divisors (see below), whose sum is σ = 145281600. Its totient is φ = 19819520.

The previous prime is 65995837. The next prime is 65995843. The reversal of 65995842 is 24859956.

It is a super-2 number, since 2×65995842² = 8710902322577928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65995791 and 65995800.

It is not an unprimeable number, because it can be changed into a prime (65995843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3034 + ... + 11882.

It is an arithmetic number, because the mean of its divisors is an integer number (4540050).

Almost surely, 2^65995842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65995842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72640800).

65995842 is an abundant number, since it is smaller than the sum of its proper divisors (79285758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65995842 is a wasteful number, since it uses less digits than its factorization.

65995842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8978.

The product of its digits is 777600, while the sum is 48.

The square root of 65995842 is about 8123.7824933955. The cubic root of 65995842 is about 404.1155152800.

The spelling of 65995842 in words is "sixty-five million, nine hundred ninety-five thousand, eight hundred forty-two".